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by hvidgaard
2187 days ago
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It's not that simple unfortunately. It's most efficient when it runs the most lean fuel mix and least engine vacuum (i.e. full throttle). That balanced with gearbox efficiency, other drive train loses, and wind resistance. As a real world example, Ford Fiesta 1.0 EcoBoost is most efficient running 28mph in 4. gear. closely followed by going 44mph in 5. gear. |
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